bengray11 bengray11

19-03-2016
Mathematics

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Calculate the area of a circle with diameter of 6cm

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physchemcalc physchemcalc

19-03-2016

Area of circle = pi times radius sqauared
Radius is from center of circle to edge
Diameter is from one side of circle to the other throygh center
Therefore radius is half the diameter
a = pi * 3^2 = 28.3cm^2 (3sf)

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